Adding and subtracting machine.



E. S. CHURCH.

ADDING AND SUBTRACTING MACHINE.

3 SHEETSSHEET I. 7 Z- 6 4 E. S. CHURCH.

ADDING AND SUBTRACTING MACHINE.

APPLICATION FILED SEPT.20, 1909. 1, 142,931 Patented June15, 1915.

3 SHEETS-SHEET 2.

THE NORRIS PETERS C0,, PHOTO-LITHO., WASHINGTON, D1 (2 E. S. CHURCH.

, ADDING AND susmmme MACHINE.

APPLICATION FILED SEPT-20, 1909. 1,142,931 Patented June 15, 1915.

3 SHEETS-SHEET 3.

2% lmcooco m M UNITED STATES PATENT OFFICE.

EDMUND S. CHURCH, OF DAYTON, OfiIO, ASSIGNOR TO THE NATIONAL CASHREGISTER COMPANY, OF DAYTON, OI-IIO, A CORPORATION OF OHIO, (INGORPORA'IED IN 1906.)

ADDING AND SUBTRACTING MACHINE.

Specification of Letters Patent. Patented J 11116 15', 1915.

Application filed. September 20, 1909. Serial No. 518,665.

To all whom it may concern:

Be it known that I, EDMUND S. CHURcH, a citizen of the United States,residing at Dayton, in the county of Montgomery and State of Ohio, haveinvented certain new and useful Improvements in Adding and SubtractingMachines, of which I declare the following to be a full, clear, andexact description.

This invention relates to accounting machines and aims to provide animproved totalizing mechanism capable of adding or subtracting asdesired. To this end means are provided for operating totalizingelements in either an additive or a subtractive sense with transfermechanism having its direction of effective movement determined by thesense of movement of the totalizer elements.

Prior totalizer transfer mechanisms have in general been designed tooperate under one of two well known principles. In many machines anactuating device, such as a rack, is caused or permitted to move anextra step, while in others a separate transfer element is employedoperating after the main actuating devices have ceased movement. In thefirst class it is very difficult to furnish a subtracting function,while in the second it is nearly impossible to subtract if more than onedenomination of the totalizer is to be actuated at once.

A main object of this invention, therefore, may be said to be theprovision of adding and subtracting mechanism having transfer devicesoperable either to add or subtract whether or not more than onedenominational element is to be operated at once. In the present caseeach denominational element of the totalizer comprises two partsconnected so as to permit one unit of extent of relative movementbetween the parts, such relative movement providing for both add: ingand subtracting and being positively controlled by the transfermechanism proper.

The totalizer of the invention comprises a plurality of pinions whichare loosely journaled on a common shaft with companion drums which arerotatable with the pinions. Nhen the pinions are d-ifierentially rotatedtheir companion drums will likewise be difwhether the denominationalelement which receives the transfer is rotating or not. The pinions anddrums may be rotated in either direction and the drums may be rotatedrelative to their respective pinions whether the pinions are beingrotated forwardly or backwardly.

From the foregoing statement it may be understood that it is among theobjects of this invention to provide a carrying mechanism for accountingmachines which strictly cooperates with the differential mechanism ofthe machine in regard to direction of movement and time of action.

lVith these and incidental objects in View the invention consists incertain novel features of construction and combinations of parts theessential elements of which are sgt forth in appended claims and apreferred form of embodiment of which is hereinafter described withreference to the drawings which accompany and form part of thespecification. I

Of said drawings: Figure l is a front view partly in section of atotalizer and carrying mechanism constructed according to thisinvention. Fig. 2 is a transverse vertical section taken on the line 22of Fig. 1. Fig. 3 is a transverse vertical section taken on the line 33of Fig. 1. Fig. 4 is a perspective View of one of the transfer pawls.Fig. 5 is a perspective view partly broken away of a sleeve of a numberdrum of the totalizer. Fig. 6 is a perspective view partly disassembledof the totalizer. Fig. 7 is a left side elevation of the totalizer andits driving and controlling mechanism. Fig. 8

is a detail of a cam which operates the mechanism for meshing andunmeshing-the totalizer with the differential mechanism.

For convenience of illustration the present invention is shown inconnection with a novel form of key. controlled differential will bereadily understoodthat the totalizer of the present invention may beoperated by many other types of differential devices whether keycontrolled or not, and the claims herein are intended to define thetotalizer and not the actuating devices except in combination.

Referring to the drawings, (Fig. 7), 1 indicates the crank handle bymeans of which power is applied to the driving mechanism of thetotalizer. The crank handle-is carried by an arm Qextending from a cam3, which is secured to a main drive shaft 4. The drive shaft is givenone rotation at each operation and the cam 3 is provided with a race orgroove 5 for the purpose ofcausing the reciprocation of a pitman 6, uponeach rotation of the shaft 4:. The'pitman 6 is provided with a roll 7extending into the race of the cam and connects the cam 3 with an arm 8fast on a shaft 9. A pair of arms 10 are rigidly secured to the shaft 9and carry a rod 11 which extends through notches 12 of links 13. Becauseof the lever connection between the pitman 6 and the links 18. theselinks are reciprocated an invariable extent upon rotations of the driveshaft 4. The links 13 constitute part of a differential mechanism of anaccounting machine for operating the totalizer. F 7 is a diagrammaticrepresentation of an accounting machine and illustrates the means foractuating the totalizer. One bank of keys only is shown but it will beunderstood that there are a plurality of such banks in the machine.There is a link 13 for each bank of keys and the links are pivotallycarried by arms 1 1 and 15 which are respectively pivoted on pins 16 and17 to the frames of the machine. There are nine levers 18, of equallength, pivoted by pins 19 to each link 13 and each of these levers atits upper or forward end is provided with a rounded nose 20 which isnormally positioned to besurrounded by studs 21 on value keys 22 whenthey are depressed. If a value kev is depressed the respective lever 18for such key will become pivotally connected to the key and because ofthis fact will be compelled to rock around such pivot upon thereciprocation of the link 13. A slide 23 is .in one of the levers 18 butat different points alongthe length of the levers.

The slides carry racks 29 and these racks will be reciprocated uponoperation of the machine to extents which correspond to the location ofthe keys 22, which are depressed. The arrangement is such that thelevers 18 are compelled to rock through an invariable angle around theirpivotal connection with the keys but as the pins 56 are differentlylocated. along the length of the levers 18 the extent. of movement ofthe slides 23 and their racks depends upon which one of the levers 18 isconnected with a key. The parts thus far described are foundsubstantially insaid prior application and the mechanical arrangement ofthe differential mechanism is here-merely outlined so that its principleof operation may be understood.

-As-the racks 29 are differentially reciprocated according to theparticular keys 22 which are depressed, the movement of these racks maybe employed for either adding to or subtraction from a totalizer amountswhich arerepresented by the depressed keys. In order to cause anaddition or subtracting it is merely necessary to cause the totalizerpin-ions to mesh with the racks 29 either upon the-forward or returnmovement of the racks. The numbers are arranged on' the number drums ofthe totalizer so that the return movement of the racks 29 will cause aforward or additive rotation of the drums if the totalizer 'pinions aremeshed with the racks at this time.

The means which are employed for causing the totalizer to be meshed withthe racks 29 upon either direction of movement of the racks arecontrolled by a key 57 (Fig. 7 This key is provided with a pair ofnotches 58 and 59 for the purposeof co-acting with a spring pressedplunger 60 whereby to retain the key in either its undepressed ordepressed positions. The shank 61 of the key is pivoted by a pin 62 to asmall frame 63 which is itself pivoted to a pitman 64. by a pin 65 andis provided with a rod 70 which is circular to the pivot and extendsthrough a lug-71 on the pitman. The pitman is pivotally and slidablymounted upon the drive shaft 1 as indicated in Fig. 8. Nhen the key 57is in its outer position the frame 63 is held in such position that aspring 72, which is interposed between the lug 71 and the left arm ofthe frame, urges the pitman 6% to the right as shown in Fig. 7. Thepitman 64E is provided with a roll 73 extending into the race 7 1 of acam 75 which is carried by the drive shaft 4:. The race 74 is circularfor the greater part of its length but at two points indicated by 76 and77, changes its distance from shaft 4; The part 76 of the race engagesthe roll 73 before the racks 29 move upwardlyrwhile the circular part 78of the race 5 (Fig. 7 engages the roll 7. Because of this arrangement,before movement is imparted to the pitman 6 the pitman 64 is drawndownwardly, and also when the circular part 79 of the race 5 is inengagement with the roll 7, at which time the racks 29 are at rest intheir upper or moved positions, the part 77 of the race 74 engages theroll 73 causing the pitman 64 to be returned to its upper position. Withthe spring 72 holding the pitman in the position in which it is shown inFig. 7 the pitman will engage a pin 80 on an arm 81 fast on thetotalizer shaft 28. This shaft rigidly carries a totalizer supportingframe 27 and when the pitman engages the pin 80 the frame 27 will berocked to carry the totalizer pinions into mesh with the racks 29 uponthe downward movement of the pitman 64. Then when the racks moveupwardly the totalizer elements will be rotated in the directionindicated by the arrow 82 which is the subtracting direction. While theracks are at rest in their upper positions the part 7 7 of the cam actsupon the pitman 64 causing the same to rise and rock the totalizer outof mesh with the racks 29 after which the racks are returned to theiroriginal or zero position.

If an operation of addition is to be made upon the totalizer, the key 57is depressed bringing the notch 58 into co-acting rela tion with theplunger 60. The depression of the key also causes the frame 63 to rockto the left compressing the spring 83. Then upon the rotation of theshaft 4 as the pitman 64 lowers a notch 84 in the pitman and a pin 85 onan arm 86 on the shaft 28 come into co-acting relation permitting thepitman to swing rearwardly, under the action of the spring 83, intoengagement with the pin 85. The further downward movement of the pitmancauses the totalizer to be rocked back to the position in which it isshown in'Fig. 7 out of mesh with the racks 29. This happens before theracks 29 are moved upwardly and because of this the pinions of thetotalizer are not rotated upon the upward movement of the racks but whenthe part 77 of the race in cam 75 engages the roller 73, at which timethe racks 29 are at rest in their upper positions, the pitman 64 will beraised causing the totalizer to be meshed with the racks 29 and heldinto mesh with the racks during their return movement and because ofthis being rotated in a forward or adding direction, which is oppositeto the direction indicated by the arrow 82.

If upon a completion of an operation of the machine the pitman 64engages the roll 85 and it is desired to cause the next succeedingoperation to be an operation of subtraction, the key 57 will first bedrawn outwardly before the machine is operated, then the pitman as itlowers will become disengaged from the pin 85 and engaged with the pin80 and therefore rock the totalizer into mesh before the racks 29 moveup wardly.

Totalizer and carrying mechanism.The specific construction of thetotalizer and its carrying mechanism is as follows: A shaft 25 (Fig. 1)upon which the totalizer pinions 26 are journaled is carried by a pairof frame arms 27 which are fixed -t0 the shaft 28. Each denominationalelement of the totalizer comprises a pinion 26, a numbered drum 30 and aserrated alining disk 31. The alining disk is secured rigidly to thenumbered drum and the numbered drum is connected to the pinion 26 by apin 32 which is carried by a sleeve 33 to which the pinion 26 is splinedand the pin 32 extends into a groove 34 in a sleeve 35 which is rigidlysecured to the numbered drum. The spline connection between the pinion26 and sleeve 33 is shown in Fig. 1, the spline in the sleeve beingindicated at 36 and the tongue of the pinion 26, which eX- tends intothe spline, at 37.

In Fig. 1 the pin 32 is shown extending into a part of the groove 34which extends transversely to the path of movement of the pin 32 uponrotation of the pinion 26. When the pin 32 and the groove 34 are in thisrelation thedrum 30 will be compelled to rotate with the pinion 26, butthe sleeve 33 which carries the pin and rotates with the pinion 26is'slidable on the shaft 25 and may be moved to carry the pin 32 intoone of the inclined parts 38 or 39 of the groove 34. When the sleeve 33is so moved the pinions 26 are in mesh with the racks 29 and the pinionsare prevented from rotating, other than as compelled to rotate by themovement of the racks. Therefore when the pin 32 moves into one of theinwardly while if the pin 32 is moved into part 39 of the groove thedrum will be rotated an extra unit backwardly. The inclined parts 38 and39 of the groove 34 extend at such an angle to the path of movement ofthe pin 32 in either direction that the drum 30 is rotated by themovement of the sleeve 33 an extent which is 1 equal, to .1 one emit,division of the drum. The particular.- drnms shown in 1 the drawings;are 4 divided; into twenty spaces. 215ecause of this -fOl:x8tCh halfrotation ofone ofthe drnmsthe drum of-neXthi-gherorder should be!rotated 01163111 1117- of: its. twenty units ofzanovement for thepnrposeof-recording thexghalfrotation iofvthezdrum' of lower order.

The longitudinal movement of each one of thesleevesBd-is for this reasoncontrolled by; the drum ofnext. lower order to. the drum which isactuated-by-the sleeve. LThezsleeves 33- are; -;provided with Hannulargrooves 40 and into these, grooves extend pins 41 which are carriedbyvthe forked arms42. These arms areopivoted Lat 4&150 frames 87 .whichlike frames 27aare'fixedzlto the shaft28 and serve tosupport thetotalizer. illheseframes ELlSOa-flCt asspacang devices 'ser'vangwtoretain the 1 diiierentl denominational elements of the ttotahzerwintheir ,propertposition.

The arms .42 'carry conical pins144-wwhich extend into the: paths .oflugs :45, carried by the serrated :ali-ningxdisks '31,-which1 aresovcured .toithe drums-30. Thel'ngs 45wareaso 1 mounted as to presentinclinedxsnrfaces ate the pins 44,: as indicated Fig.1;2 1 and. if oneof the-lugs 45,:iengagesjritsq:respectiye pin 44 upon the forwardrotation. of 5. the

drum which carries the lug; the pin- .44 will be forced-:upWardlytherebyicausing the arm a 42 @to rock in the direction indicated bythe-arrow-46 ,(Fig. 4); l -he; sleeve-33 will therefore be drawn to theright causing the pin32v to engage the groove 34 of the :sleeve 35- at38 androanse theddrum 30 V which secured to the sleeve .35 .towmta-teone unit ofats movement in aforward .di-

rection. 'The; sleeve .33 .would'be caused to move -;to the-left,-.carrying1 the pin. 3-2 into the part 39 :of the groovei35=if thedrum which rocks. the arm 42 were rotating. backwardly. Thealug45 whichit carries would then engage the upper, surfaceof the :pin I 44 andthrough such; engagement rock the arm 42 oppositely to the directionindicated by'the arrow 46.

The arms. 42, iarezyprov'ided with gspear shapedheads as indicated at 47(Fig; 4) whichenter openings 48; in aframer49 when the totalizeris-rocked awayfrom the. actuafter the: totalizer ::l1ElS been actuated,i but before the pinionsz26have become entirely disengaged z-fromi theracks 29 as the totalizer isrocked :out :of mesh, the-serrated disks31,-wcome intocontact. with .pawls-52. which areiloosely mountednpon-theshaft 28 and are spring pressed, downwardly toward the disk-31by springs .53. The-downward movementof the pawls.52- islimited by lugs5bWhiCh-J6X'i3fllld. through openings 55 in the frame 49.;and partlyover the top of :the framesas indicatedin'. Figs. 2 and..3. The pawls 52serve to lockthe totalizer drums 30 against. rotation from: the positiontOnWhlClhthGYlihflVlL-B been: set by the racks 29 and the carryingmechanism. Therefore whenthetheads 47gof the arms 421enter the openings48 the .resulting return movement ofthe -.sleeves; '33 will: not cause.movement of the drums .30, out will rotatethe pinions 26,-onewunitofmovement to normal relation withrsthe drums, and aso'the pinions atthis time xarezz ientirelyr-disconnected' from the racksi29 thesettingzofthe racks will not be disturbed.

ifl he numbered drums and their companion pinions:26;and also the frames87may be provided with ball hearing if desired, but this is notessentialasithe rateof rotation of the totalizerIelements is usually-very, low.

:It is.;thought that the description thus given will be-sufiicient toset outaclearly the principle and-mode 'ofuoperation of thepinvention.The :totalizer, therefore, may be seenuto consist :of'denominationalelements eachconiprising atWO parts; a pinion and a drum, andconnections between each pinion and itsdrnmwherebv the drums may .begivensiunit. movements relative totheir pinions, under'control of drumsof lower order, and which relative movements may be in either anadditive or a subtractive sense determinedwby the :sense of movement ofthe drumsas controlled by their actuating devices. Theconnections :as.shown comprise sleeves and "pans riding therem which sleeves aremovedbyztransfer elements proper,herein disclosed -aslevers controlledby. lower order drums.

'While' the form of mechanism herein shown and described is admirablyadapted towfulfil-"the objects primarily stated, it is tozbevunderstoodthat it is not intended to confine the-invention to the oneform. ofembodiment. herein shown and described, as it is susceptible ofembodiment in' various forms all comingwithin the scope of the claimswhich follow.

What: is claimed is as follows 1. In a machine of the classdescribed,1the combination -with vtotalizer elements of higher and lowerorders each comprising a drivingpinion and a drum having aprojectinglugand anangular slot, of means for differentially actuatingsaid pinions, sleeves carryin-g -said pinions and having pins riding insaid angular slots, and elements connectedto said sleeves andconstructed ,to be engaged and operated by said projecting lugs.

2. In a machine of the class described, the combination with totalizerelements of higher and lower orders each comprising a driving pinion anda drum having a projecting lug and an angular slot, of means fordifferentially actuating said pinions, sleeves carrying said pinions andhaving pins riding in said angular slots, and levers having armsconnected to said sleeves and other arms constructed to be engaged andoperated by said projecting lugs.

3. In a machine of the class described, the

combination with totalizer elements of higher and lower orders eachcomprising two parts and connections therebetween for causing one unitrelative movements between the two parts, of devices for differentiallyactuating a first one of the parts of each totalizer element, and meanscontrolled by the second of the parts of each totalizer element of lowerorder for actuating the said connections of the totalizer elements ofnext higher order and thus producing said one unit relative movements insaid latter totalizer elements.

4. In a machine of the class described, the combination with totalizerelements of lower and higher orders each comprising two parts andconnections therebetween for causing one unit relative movements betweensaid two parts, of devices for differentially actuating a first one ofthe parts of each totalizer element, and levers operated by the secondof the parts of each totalizer element of lower order. said levers beingjoined to and serving to shift said connections of totalizer elements ofnext higher orders and thus producing said one unit relative movementsin said latter totalizer elements.

5. In a machine of the class described, the combination with totalizerelements of higher and lower orders, each comprising a pinion and a drumand connections therebetween for causing one unit relative movementsbetween each pinion and drum; of devices for differentially actuatingeach of said pinions, and means operated by each drum of lower order foractuating said connections of the elements of next higher order and thusproducing said one unit relative movements in said higher order drums.

6. In a machine of the class described, the combination with totalizerelements of lower and higher orders, each comprising a pinion and a drumand connections therebetween for causing one unit relative movementsbetween said pinions and said drums; of operating devices fordifferentially actuating said pinions, and levers operated by said drumsof lowerorder, said levers being joined to and serving to actuate saidconnections between clrums of next higher order, and thereby causingsaid one unit relative movements in said higher order drums.

7. In a machine of the class described, the combination with totalizerelements of higher and lower orders, each comprising a pinion and adrum, and camming connectlons between each pinion and drum constructedto advance the drums by movements of one unit relative to the pinions;of levers continuously joined to the camming connections, and deviceswhereby each drum of lower order may operate the corresponding one ofsaid levers to shift the camming connections for the totalizer elementsof next higher order, and thereby cause said one unit relative movementsof said higher order drums.

8. In a machine of the class described, the combination with totalizerelements of higher and lower orders, and means for operating saidelements in either direction as desired, of transfer devices operatingeach element of higher order and constructed to be actuated from anormal position by elements of lower order, in directions depending onthe direction of movement of said lower order elements, and means forrestoring said transferdevices to normal position.

9. In a machine of the class described, the combination with totalizerelements of lower and higher orders, and means for operating saidelements in either direction as desired, of oblique lugs carried by saidelements, transfer levers movable in opposite directions by contact withsaid lugs, and connections from said levers to the several totalizerelements.

10. In a machine of the class described, the combination with totalizerelements of lower and higher orders, and means for operatingsaid'elements in either direction as desired, of camming devices carriedby said elements, transfer devices movable by said camming devices indirections depending on the direction of movement of the totalizerelements, and mechanism connecting said transfer devices to saidtotalizer elements.

11. In a machin e of the class described. the combination with totalizerelements of lower and higher orders, and racks for giving said elementsdifferential movements in either direction as desired; of transferdevices for said elements of higher orders including levers, and devicescarried by said totalizer elements of lower orders and positioned andconstructed to engage said levers and to operate them in directionsdepending on the directions of movement of said lower order totalizerelements.

12. In a machine of the class described,

the combination with totalizer elements of vices forsaid elementsof'higher orders ineluding levers, and camming devices carried by saidtotalizer elements of'lower orders, and constructed to engage andoperate said levers in directions depending on the direction of movementof said lower order totalizer elements.

13. In a machine of the class described, the combination with totalizerelements each comprising a pinion and a drum and con necting devicestherebetween constructed to cause one unit relative movements betweensaid pinions and drums; of means for differentially actuating saidpinions, mechanism controlled by the drumsfor'actuating saidconnecting-devices and'thereby causing said one unit relative movements,while said pinionsengage their actuating devices, looking devices forsaid drums, *and means for reversely actuating saidrconnecting deviceswhile said locking devices lock said drums;

14. In a'machine of-the class described, the combination withtotalizerelements each comprising-a pinion and a drum with connectingdevices therebetween constructed to cause one unit relative -movementsbetween said pinions and drums; ofmeans for differentially actuatingsaid pinions, devices for engaging and disengaging said pinions fromtheir actuatlng means, mechanism controlled by said drums for actuatingsaid connecting'devices and therebycausing said one unit relativemovements while said pinions areengaged with'their actuating devices,"means for locking said drums while said pinions are disengaged'from theactuating devices and means for reversely operating said connectingdevices-while the looking devices engage-said drums.

15. In a -machine of the class described, the combination with totalizerelements each comprising-a pinion and'a drum-andconnecting de'vicestherebetween constructed to cause one unit relative movements of saidpinions and drums; of actuatingmeans for said pinions and lockingdevicesfor said drums into engagement with which said pinions and drumsrespectively are successively thrown, mechanism controlled by said drumsfor actuatingsaid connecting devices while the pinions engageitheir'actuating devices, and devices for reversely actuating said connectingdevices while said drums engage their locking devices.

16. In a machine of the class described, the combination with atotalizer comprising a plurality of movable elements, of actuatorstherefor normally out of engagement therewith, means for moving theelements of'the totalizer into and-out of engagement with the actuators,devices actua'tedby' an element of lower order for imparting-a transfer-movement to the element of next higher: order while the elements are inen- 'gagement with the actuators, and means for returning the actuatedtransfer devices to normal position as the totalizer elements are movedout of engagement with the actuators.

17. In a machine of the class described, the combination with atotalizer comprising a plurality of movable elements, of actu atorstherefor normally out of engagement therewith, means for moving theelements of the totalizer into and out of engagement with the actuators,devices movable with the totalizer elements and actuatedby an element"of lower order for imparting a transfer movement to the element of nexthigher order While the elements are engagement; with the actuators, andmeans for returning vthe' actuated transfer A devices to normal'positionas the totalizer elements are moved out a of". engagement with theactuatom:

18. In "a 'totalizer the combination with a plurality ofdifl'erentiallymovable elements, means for simultaneously driving-said elements' ineither direction for-the purpose of addition or subtraction and meanscontrolled by an element of-lower orderforimparting an additionalmovement in P either a direction to'the'element' of'nexthigher ordersimultaneous with the driving of said elements and independent ofthelatters driving means 19. In a'tot'alizer,"thecombination of a pluralityof differentially movable elements; means for driving. said'elemeIItS-in'either direction for the" purpose-:of'addition orsubtraction; andmeans controlled by-an element of 'lowerworder forimparting an additional movement ineither direction to the-elementofnext higher order while the latter is being-actuated andindependentlyhigher and lower orders, and means-forsimultaneously i operating saidelements in either direction as desired-,- of transfer devices.operating each element of higher order: and constructed to be: actuatedfrom a norinal-position by elements of lower order, in directionsdepending on thedirectiOn I of movement of said lower order elements,and means for" restoring :the operated transfer devices 4 to theirnormal: positions.

21:. The combination with totalizer'elements ofrlower-and higherorders,-of means for simultaneously operating said i'elements in either--direction as desired, cams carried by the- =totalizer elements, andmeans: wherebysaid cams drive the-adj acent higher order t'otalizerelements in either direction to effect F transfers, 1. the directiondepending upon -the direction in-whichthe cams'are being carried bythetotalizer elements.-

the direction in which the cams are being 10 carried by their totalizerelements.

In testimony whereof I affix my signature in the presence of twowitnesses.

EDMUND S. CHURCH.

22. The combination with totalizer elements of lower and higher orders,of devices for simultaneously operating said elements differentially andin either direction, and means whereby the cams drive adjacent higherorder totalizer elements in either direction to efieot transfers whilethe operating devices are differentially operating said elements, thedirection depending upon Witnesses:

F. E. HAMILTON, R. RUMMLER.

(.opies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patentl,

Washington, D. G." V

